A farewell letter written by Srul Shaya Kalezyk on 15 February, 1944, about 10 months after the Warsaw Ghetto uprising. "I am still alive. I don't know if I will be tomorrow. I write at a time when there are no longer any Jews in Warsaw..." It was found among the ruins of the Warsaw Ghetto in 1965.

During the Warsaw Ghetto uprising of April 1943, Tuvia Borzykowski (left) fought in the central ghetto and escaped via the sewers to contact comrades on the open Polish side. He returned after the fall of the headquarters bunker at Mila 18, and survived with the last ghetto fighters. He was a Jewish fighter in the Polish underground Armia Ludowa, which fought the Germans in 1944, and was decorated for heroism by the Polish government. He died in 1951 at Kibbutz Lohamei Hagetaot.